Maqola

In-situ hot pressing/solid-liquid reaction synthesis of dense titanium silicon carbide bulk ceramics

Yanchun ZhouCeramic and Composite Department, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 10015, P. R. China Fax: ,Zhimei SunCeramic and Composite Department, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 10015, P. R. China Fax: ,Shengqi ChenCeramic and Composite Department, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 10015, P. R. China Fax: ,Yi ZhangCeramic and Composite Department, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 10015, P. R. China Fax: ,

1998en

ABI

Annotatsiya

An in-situ hot pressing/solid-liquid reaction process was developed for the synthesis of dense polycrystalline Ti3SiC2 ceramics using Ti, Si, and graphite powders as starting materials. The present work demonstrated that this process was one of the most effective and simple methods for the preparation of dense bulk Ti3SiC2 materials. Lattice constants of a=3.068 and c=17.645 are calculated for Ti3SiC2 made through this process. The synthesis temperature influenced the phase composition, microstructure and mechanical properties of Ti3SiC2 prepared at different temperatures. And bulk materials with flexural strength of 480 MPa and fracture toughness of 7.88 MPa.m1/2 were obtained at 1600°C. The high fracture toughness and strength are discussed based on microstructure analysis.

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Identifikatorlar

DOI: 10.1007/s100190050076

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